Question

When a 58 g tennis ball is served, it accelerates from rest to a constant speed of 36 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 35 cm. What is the magnitude of the net force acting on the ball?

Answer 1

f=ma
we need to find a first

v=at= 36m/s
x=0.36 m

x=1/2 at^2
0.36=1/2(at)t
0.36=1/2 (36) t

t=0.02 seconds

v=at
36=a*0.02
a=1800

F=ma
F=0.058 * 1800
F=104.4 N